Lidocaine Drug Cards

Question 1

Lidocaine: Class

Answer 1

Class 1B - Antiarhythmic/Antidysrhythmic, Anesthetic

Question 2

Lidocaine MOA

Answer 2

Cardiac - Decreases automaticity by slowing the rate of spontaneous phase 4 depolarization.

Local Anesthetic: Inhibits transport of ions across the neuronal membrane, blocking conduction of normal nerve impulses.

Question 3

Lidocaine Indications

Answer 3

Cardiac Arrest, VT/VF, VT w/pulse, PVC’s Preparalytic (RSI).

Local Anesthetic: For various procedures, including intubation and IO infusions.

Question 4

Lidocaine Contraindications

Answer 4

Hypersensitivity, Hypotension, 2nd or 3rd degree AV blocks, Stokes-Adams syndrome

Question 5

Lidocaine Adverse Reactions

Answer 5

Seizure, Slurred Speech, AMS, Anxiety, Confusion, Drowsiness, N/V, Tinnitus, Respiratory Arrest, Decreased HR, Bradycardia, Hypotension, Dysrhythmias, AV Block, Cardiac Arrest

Question 6

Lidocaine NOTE

Answer 6

If pt is 70+yo, has liver dz, is in CHF or shock, reduce all doses, repeat doses & maintenance.

Question 7

Lidocaine Dosage & Adm for Cardiac Arrest VT/VF

Answer 7

Adult : 1-1.5mg/kg IVP. May repeat twice w/0.5-0.75 mg/kg IVP Q 5-10 mins (Q 4 mins for ACLS) as an alternative to Amiodarone. Max dose 3mg/kg or 3 total doses.

Peds : 1mg/kg IV/IO (max dose 100mg)

Question 8

Lidocaine Dosage & Adm for Stable VT / Maintenance Infusion:

Answer 8

1-4 mg/min. After a loading dose. (Mix 1g in 250ml of D5W)

Question 9

Lidocaine Dosage & Adm for PVC’s

Answer 9

0.5-0.75mg/kg

Question 10

Lidocaine Dosage & Adm for Local Anesthetic

Answer 10

Doses vary depending on procedure and location.

Question 11

Duration of Action

Answer 11

Onset: 1-5 mins

Peak: 5-10 mins

Duration: Variable 15 mins-2hrs